William K. Sebastian

William King Sebastian (1812-20 May 1865) was a US Senator from Arkansas (D) from 12 May 1848 to 11 July 1861, succeeding Chester Ashley and preceding Alexander McDonald.

Biography
William King Sebastian was born in Centerville, Tennessee in 1812, and he became a lawyer and cotton planter in Helena, Arkansas in 1835. He served as an attorney, judge, a state legislator, and a presidential elector before serving in the US Senate from 1848 to 1861. He was expelled for his support of the Confederacy during the American Civil War, and he moved to Memphis in 1864 after federal troops occupied Helena. He died there in 1865.